TermRangeTermEnum

Enumerates all terms greater/equal than lowerTerm
but less/equal than upperTerm.
If an endpoint is null, it is said to be "open". Either or both
endpoints may be open. Open endpoints may not be exclusive
(you can't select all but the first or last term without
explicitly specifying the term to exclude.)

Parameters:

reader -

field - An interned field that holds both lower and upper terms.

lowerTermText - The term text at the lower end of the range

upperTermText - The term text at the upper end of the range

includeLower - If true, the lowerTerm is included in the range.

includeUpper - If true, the upperTerm is included in the range.

collator - The collator to use to collate index Terms, to determine their
membership in the range bounded by lowerTerm and
upperTerm.